Play as King Ghidrah:
Enter 877467 as a code. A monster will roar to confirm
correct code entry. Alternately, successfully complete adventure
mode as Megalon.Ryan Bram.

Play as Mecha Godzilla:Enter 131008 as a code. A monster will roar
to confirm correct code entry. Alternately, successfully complete
adventure mode as Destoroyah, Rodan and Mecha King Ghidrah.Ryan Bram.

Play as Mecha King Ghidrah:Enter 557456 as a code. A monster will roar
to confirm correct code entry. Alternately, successfully complete
adventure mode with King Ghidrah.Ryan Bram.

Play as Orga:Enter 202412 as a code. A monster will roar
to confirm correct code entry. Alternately, successfully complete
adventure mode with all characters once, then complete adventure
mode again under the medium difficulty setting as Godzilla 2000.
Charles Neal.

Play as Rodan:Enter 104332 as a code. A monster will roar
to confirm correct code entry. Alternately, successfully complete
adventure mode as Gigan.Ryan Bram.

Almost all monsters:Enter 696924 as a code. A monster will roar
to confirm correct code entry. All monsters except for Orga will
be unlocked.Vegetto1234.

Technicolor mode:Enter 661334 as a code. A monster will roar
to confirm correct code entry.KinguGhidrah.

Black and white mode:Enter 567980 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Smog mode:Enter 913963 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Eleven continues in adventure mode:Enter 760611 as a code. A monster will roar
to confirm correct code entry.KinguGhidrah.

All cities:Enter 480148 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Indestructible buildings:Enter 112122 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

All buildings and objects throwable:Enter 756287 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Small player one:Enter 986875 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Small player two:Enter 971934 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Small player three:Enter 895636 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Small player four:Enter 795735 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Small players:Enter 174204 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Invisible player two:Enter 459113 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Invisible players:Enter 316022 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Unlimited rage for player one:Enter 649640 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Unlimited rage for player two:Enter 122224 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Unlimited rage for player three:Enter 548053 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Unlimited rage for player four:Enter 451242 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

No damage for player one:Enter 843901 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

No damage for player two:Enter 706149 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

No damage for player three:Enter 188522 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

No damage for player four:Enter 286552 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

No damage for all players:Enter 505634 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Extra damage done by player one:Enter 511012 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Extra damage done by player two:Enter 815480 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Extra damage done by player three:Enter 212454 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Extra damage done by player four:Enter 286552 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Extra damage done by all players:Enter 817683 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Regenerate energy:Enter 492877 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Energy boost for player one:Enter 650867 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Unlimited energy for player one:Enter 677251 as a code. A monster will roar
to confirm correct code entry. Vegetto1234.

Unlimited energy for player two:Enter 435976 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Unlimited energy for player three:Enter 603696 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Unlimited energy for player four:Enter 291680 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Toggle military response:Enter 256806 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Extra damage done by military:Enter 308929 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Player status always displayed:Enter 135984 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Disable life and energy display:Enter 443253 as a code. A monster will roar
to confirm correct code entry.Ryan Bram.

Hint: Special moves:Moves that are special to some monsters can be executed
by pressing R + L or A + Y. For example,
Gigan teleports and Megalon digs underground. Note: While underground
with Megalon you have to continue holding these buttons to move
around. Target yourself under your opponent and execute a grab.
You will emerge from the ground with the opponent in your hands.
If you miss, you will be standing open to attack because you are
exhausted from digging.Kent Campbell.

Hint: Grabbing tanks:You can lift up tanks. To do so, go slowly to a freezing
tank and lift. You cannot do this while small.

Hint: Make Destoroyah dance:When playing as Godzilla 2000 use your fire breath
to set him on fire and he will dance.

Hint: Picture Gallery:Atari symbols appear randomly in every other city immediately
upon starting the game for the first time. Each monster can collect
a certain amount throughout story mode. Where one monster had
no Atari symbol in one city, playing the game through with another
monster may yield an Atari symbol from that same city. The key
to getting all Atari symbols is to play the game through with
every monster and collecting them as you go. You cannot get every
Atari symbol unless you try to find them with every monster. Sometimes
the Atari symbols are also the keys to unlocking the level that
you are playing on. You may sometimes find two symbols in one
arena. One symbol is for the gallery, and the other is for unlocking
the current arena.Mike Pappalardo.

Godzilla 2000 and Godzilla 90's: Have long breath attacks, creating
a double barrel breath attack which is very strong.Chris Scanlan.

Gigan and Megalon: Have other methods of movement , such digging
and teleporting (L + R). For example, have Megalon
start digging and the opponent starts running. Next, have Gigan
teleport directly in front of the opponent and hits him then Megalon
comes out, catches the opponent, and throws him.Chris Scanlan.

Orga and Destroyah: They have powerful physical attacks. An onslaught
of powerful attacks can defeat an enemy easily.Chris Scanlan.

King Ghidorah (or Mecha-King Ghidorah) and Rodan: Rodan is much
faster and can pin the opponent in the air, while Ghidorah uses
a triple lightning beam in the air.Latina1029.

Megalon and Destroyah: Have Destroyah use Oxygen Blast, and while
your opponent is down, use a Dig for Megalon.WmYandell.

Godzilla 2000 and Orga: Orga has a good special rage attack, while
Godzilla 2000 has a perfect Z (tap) attack to keep the
enemy on the ground while Orga obtains a Rage power-up.Teemtopag2.